All ICD10 Codes
Chapter 19

S00–T88: Injury, Poisoning and Certain Other Consequences of External Causes

Injury, Poisoning and Certain Other Consequences of External Causes diagnostic classification updated for 2026.

Chapter Instructions

Excludes2(Not included here. Code separately if applicable.)
Use Additional Code
  • code to identify any retained foreign body, if applicable (Z18.-)
All CodesBillable Only
Internal Codes
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  • T21.40XS—

    Corrosion of unspecified degree of trunk, unspecified site, sequela

  • T21.41—

    Corrosion of unspecified degree of chest wall

  • T21.41XA—

    Corrosion of unspecified degree of chest wall, initial encounter

  • T21.41XD—

    Corrosion of unspecified degree of chest wall, subsequent encounter

  • T21.41XS—

    Corrosion of unspecified degree of chest wall, sequela

  • T21.42—

    Corrosion of unspecified degree of abdominal wall

  • T21.42XA—

    Corrosion of unspecified degree of abdominal wall, initial encounter

  • T21.42XD—

    Corrosion of unspecified degree of abdominal wall, subsequent encounter

  • T21.42XS—

    Corrosion of unspecified degree of abdominal wall, sequela

  • T21.43—

    Corrosion of unspecified degree of upper back

  • T21.43XA—

    Corrosion of unspecified degree of upper back, initial encounter

  • T21.43XD—

    Corrosion of unspecified degree of upper back, subsequent encounter

  • T21.43XS—

    Corrosion of unspecified degree of upper back, sequela

  • T21.44—

    Corrosion of unspecified degree of lower back

  • T21.44XA—

    Corrosion of unspecified degree of lower back, initial encounter

  • T21.44XD—

    Corrosion of unspecified degree of lower back, subsequent encounter

  • T21.44XS—

    Corrosion of unspecified degree of lower back, sequela

  • T21.45—

    Corrosion of unspecified degree of buttock

  • T21.45XA—

    Corrosion of unspecified degree of buttock, initial encounter

  • T21.45XD—

    Corrosion of unspecified degree of buttock, subsequent encounter

  • T21.45XS—

    Corrosion of unspecified degree of buttock, sequela

  • T21.46—

    Corrosion of unspecified degree of male genital region

  • T21.46XA—

    Corrosion of unspecified degree of male genital region, initial encounter

  • T21.46XD—

    Corrosion of unspecified degree of male genital region, subsequent encounter

  • T21.46XS—

    Corrosion of unspecified degree of male genital region, sequela

  • T21.47—

    Corrosion of unspecified degree of female genital region

  • T21.47XA—

    Corrosion of unspecified degree of female genital region, initial encounter

  • T21.47XD—

    Corrosion of unspecified degree of female genital region, subsequent encounter

  • T21.47XS—

    Corrosion of unspecified degree of female genital region, sequela

  • T21.49—

    Corrosion of unspecified degree of other site of trunk

  • T21.49XA—

    Corrosion of unspecified degree of other site of trunk, initial encounter

  • T21.49XD—

    Corrosion of unspecified degree of other site of trunk, subsequent encounter

  • T21.49XS—

    Corrosion of unspecified degree of other site of trunk, sequela

  • T21.5—

    Corrosion of first degree of trunk

  • T21.50—

    Corrosion of first degree of trunk, unspecified site

  • T21.50XA—

    Corrosion of first degree of trunk, unspecified site, initial encounter

  • T21.50XD—

    Corrosion of first degree of trunk, unspecified site, subsequent encounter

  • T21.50XS—

    Corrosion of first degree of trunk, unspecified site, sequela

  • T21.51—

    Corrosion of first degree of chest wall

  • T21.51XA—

    Corrosion of first degree of chest wall, initial encounter

  • T21.51XD—

    Corrosion of first degree of chest wall, subsequent encounter

  • T21.51XS—

    Corrosion of first degree of chest wall, sequela

  • T21.52—

    Corrosion of first degree of abdominal wall

  • T21.52XA—

    Corrosion of first degree of abdominal wall, initial encounter

  • T21.52XD—

    Corrosion of first degree of abdominal wall, subsequent encounter

  • T21.52XS—

    Corrosion of first degree of abdominal wall, sequela

  • T21.53—

    Corrosion of first degree of upper back

  • T21.53XA—

    Corrosion of first degree of upper back, initial encounter

  • T21.53XD—

    Corrosion of first degree of upper back, subsequent encounter

  • T21.53XS—

    Corrosion of first degree of upper back, sequela

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